cmd.read_pdbstr("""\
""", "chainBK")
cmd.hide("all")
cmd.color('grey70', "chainBK")
cmd.show('ribbon', "chainBK")
cmd.select("e7nsjBK1", "c. K & i. 17-83")
cmd.center("e7nsjBK1", state=0, origin=1)
cmd.zoom("e7nsjBK1", animate=-1)
cmd.show_as('cartoon', "e7nsjBK1")
cmd.spectrum('count', 'rainbow', "e7nsjBK1")
cmd.disable("e7nsjBK1")